Shield for tools.



A. D., ELLIOTT, DEGD.

M. E. ELLIOTT, EXEGUTRIX.

SHIELD FOB. TOOLS. APPLICATION FILED MAR.24, 1905.

Patented May '3, 1910.

l/V/TA/ESSES.

D. ELLIOTT DECD. M. E. ELLIOTT, EXEGUTBIXM SHIELD FORYTOOLS. APPLI ATIM'I TILED MAR.24,1905.

Patented a 3,1910.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

MARY E. ELLIOTT, OF LAWRENCE, MASSACHUSETTS, EXECUTRIX 0F ALVTN D. ELLIOTT, DECEASED, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SHIELD FOR TOOLS.

To all whom it may concern:

Be it known that ALVIN D. ELLIOTT, deceased, late of Lawrence, in the county of Essex and Commonwealth of Massachusetts, invented certain-Improvements in Shields for Tools, of which the following description, in connection. with the accompanying drawings, is a. specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to shields for tools, and more particularly to means for covering agotary tool in heel-trimming or analogous machines.

One embodiment of the invention is shown applied to a machine for breasting heels, but as will be obvious the invention is capable of application to machines having other objects.

Heretofore so far as I am aware, rotary tools'in machines of this class have been arranged with a part of their acting periphcries in an exposed position to permitthe work to be presented to the tool. With such an arrangement there is some liability of injury eitherto the operator or to the work through accidental contact with the exposed portion of the tool.

One of the more important objects of the invention is to remove liability of such accidental injury. To this end I provide means for covering the acting part of a tool of the character mentioned, said means'being normally arranged to cover the tool for that portion of its path into which the work is moved. The construction is such that as the work is. moved toward the tool the covering means is mechanically displaced to permit contact of the work with the tool and is thereafter mechanically changed in positionto accommodate difv ing-- and positionin the shoe is provided w ich is normally out of ferent positions of the work with relation to the tO'Ol:

In the particular embodiment of the in'-' vention shown a work. support for sustainoperative relation to a rotar :y cutter and is movable to bring the 'breastof a heel into the path of the cutter. A casing for the rota cutter is provided having a .section mova ly sup orted. on any convenient part of the machine an in' its eiiective'p'osition located adjacent to Specification of Letters Patent.

Application filed March 24, 1905.

.of the cutter in position to form ashield eel of a boot or the acting portion Patented May 3, 1910. Serial No. 251,798.

for said acting ortion. The position of the shieldis controlled in accordance with the position of the work support, so that as the work support is actuated to bring the work into'the path of the cutter the shield is mechanically displaced to permit the work to be brought into operative relation to -the cutter.

Other features of the invention will be hereinafter described and pointed out in the claims.

In the drawings,Figure 1 is a view in side elevation of a portion of a-machine for breasting heels, with one embodiment of the invention applied; Fig. 2 is a view in front elevation; and Fig.3 is a top plan view.

, Theidrawings show one embodiment of the invention applied to a machine for trimming breasts of heels, said machine being of the construction shown in United States Letters Patent No. 784,340, granted March 7, 1905, to Benjamin F. Mayo. This ma chine comprises a frame 2, provided with suitable bearings 4, one of these bearings being shown. The bearings 4c are arranged to support a rotary shaft 6 carrying a trimming tool or cutter 8. A tubular boss 10 is adjustably secured to frame 2 by bolts 12 passing through slots in a shank. 14: extending from boss 10. The boss l0 serves' as a guide for a spindle 11 uponthe upper end of which a work support is mounted. The ,work support comprises an arm 18 held in fixed position upon said spindle by a nut 20. The arm 18 maybe adjusted pivotally on the spindle 11 by loosening'the nut 20. A.

vertical post 22 is provided 'at one end of the arm 18, and'is formed with a' rest for a heel. The rest comprises a horizontal shoul- Jet 24 and a vertical tread support 26 ex tending above said shoulder 24. A rest 28 for the sole of a shoe is shown at the other ably supported upon said arm by a clamp 30 holding an arm 32 extending from said rest. The work supportshown is substantially the same inconstruction and operareferred to; The position of this support is shown in .Fig. 3. 'There is shown on the drawings "a preferred form of covering means for the rotary cutter 8. This means includes a section 34 a shoe upon end of the arm 18, the rest 28 being adjusttion as that disclosed in the patent above inclosing the rear portion of the cutter and a section 36 placed over the ortion projectsald conduit.

ing from the section 34. T c section 34 is preferably provided with a conduit 38 leadmg to a fan for diroducing a suction through ne side of the section 34 is cut away, as shown b the dotted line in Fig. 1-, to permit lateral introduction and removal of the cutter 8. This cut-away portion is covered by a slide 40 pivoted at 42 and movable from over said cut-away por-. tion to expose the end of the cutter 8. The section or shield 36 in its effective position is arranged'adjacent tothe acting portion of the cutter 8. The shield 36'may be as shown in Figs. 1 and 3 of a form to-extend over-and cover the up er portions of the cutter projecting from t c section 34, as it has been found that the cutter is effectually protected by such an arrangement. It is preferred to employ nieans for movably suscasing and -a spring the work support.

lugs 68 upon the holder.

"taining the shield 36 inposition. The sustainin means shown comprises a holder 44 pivota ly mounted upon a bearing 4, and provided at its outer end with a tubular boss 46 adapted to receive a rod 48 to which the shield 36 is secured. Thefree end of the shield 36 rests upon the section 34 of the 50 maybe employed to hold said free en toward the section 34. .The spring 50 is of helical form and surrounds one end of the tubular boss 46; having one end 52 engaging the shield and the other end 56 hearing against a lug upon the holder 44. -As shown 1n Fig. 3, the rod 48 has a limited movement longitudinally in the boss 46 and is provided at one end with a pin 58 ada ted to enter a groove 60 in the end of said Boss and hold the shield in the position shown in dotte d lines in F ig. 1.

Figs. 1 and 2, the holder 44 rests upon-the work support. A sprin 62 may be used if desired tending to hold tie holder 44- against The holder 44 may conveniently have a bore to receive the bearing .4, said holder being maintained in position upon thejbearing4by. a strip 64 rcmovably secured to the bearing by a bolt 66 and arranged to enter a groove formed by two In the operation of the machine shown the work support is' moved vertically to bring the breast of a heel into the path of the cutter, the shield 36 bein mechanically displaced in the movement of the work support -as' indicated in Fig, 1. The shield 36 may be moved into the dotted-line position shown in this figure, whenever it is desired to have access to thecutter. It will be apparent that the arrangement of shield 36 with relation to the-work support-permits relative movement of-these elements. Such covered either by the shield alone or by t e shield and the work.

Having described the invention, what -I claim as new and desire to'secure by Letters Patent of the United States is 1. In a heel breasting machine in which the heel to be breasted is moved across the path of a rotary cutter the-combination with said cutter of a shield arranged to extend a normally over the cutter the entire width of its acting part and constructed to be progressively moved to expose said acting part as the heel is fed across said path.

2. A machine of the class described having in combination, a rotary cutter, a Work support arranged for movement to bring the work into contact with the cutter and a shield arranged to normally cover the acting portion of the cutter and to be progressively displaced to expose said acting portion as the work support is moved toward said cutter.

3. In a machine of the classdescribed, a

tool, ashield for the tool arranged independently of the tool and movable to expose said tool, a work support arranged to support the work normally out of operative relation to the tool and movable relatively to the tool to bring the work into contact with the tool, and means for controlling said shield in accordance with the position of the" work support.

4. In a machine of the class described, a tool, a work support arranged to support the work normally out of operative relation tothe tool, and movablein a fixed path to bring the work into. the path of the tool, means permitting the nth of the work support to be varied, an a shield for the tool movable to expose the tool, and arranged in the path of the work support to be actuated by said support. a

5. In a machine of the class described, a rotary tool a work support arranged to support the work normally out of contact with the tool and movable to bring the work into the path ofan acting part of the tool, a' casing for the tool having a section adj acent said acting part of the tool movable to eic pose said part and arranged in theipath of port.

6. In a machine of the class described, a I its path into which the work is moved, and rotary tool, a casing for the tool having a mechanism for displacing said: shield upon section arranged to shield an acting part of the presentation of the work to the tool. the tool, a holder for said sectionmovable In testimony whereof I have signed my transversely to the axis of the tool and name to this specification in the presence means for pivotally mounting said section of two subscribing witnesses. upon the holder. MARY E. ELLIOTT,

' Estate of Alvin D. Elliott,

7; In a machine of -the class described, a tool arranged for movement in a fixed path, a casing for covering a portion of the tool, a shield movably sustained by said casing arranged to cover the tool for that portion of Ewecut'r'iw of the deceased. Witnesses:

THOMAS LUND, THOMAS BEvING'roN. 

